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Answer to Question #49705 in Physical Chemistry for keisha

Question #49705
Consider the dissociation of methane, CH4(g) into the elements H2(g) and C(s,
graphite).
(i) Given that the enthalpy and entropy of formation of methane are –74.85
kJ mol –1 and –80.67 J K–1 mol –1 respectively at 298 K, calculate the
standard Gibbs energy for the dissociation and the equilibrium constant
K. [5]
(ii) Deduce the expression for the degree of dissociation α (also known as
extent of reaction) for this reaction.
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